I recently bought a second-hand A52s; the device works fine, but I have a bit of a problem.
My carrier is Movistar, and the issue is that I have a data connection but cannot make calls, receive messages, or send messages—only the data connection works.
I've tried everything—changing the APN settings, manually connecting to the carrier—but the problem persists.
When I try to make a call, it just gives me an error message; the same message appears when I try to send a text.